Leptodactylus lep·to·dac·tylus uncommon noun 1. type genus of the Leptodactylidae; in some classifications placed in the family Bufonidae Synonymsgenus Leptodactylus Related words Word family Leptodactylus pentadactylus Broader terms amphibian genus Parts Leptodactylidae Part of crapaud WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.